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4XC0F28731 — Network Technical Data

Lenovo · NIC ADAPTER
WHAT YOU NEED TO KNOW
RJ45 = copper (needs CAT6) | SFP+ = fiber (needs transceiver) FLR = FlexibleLOM (HPE integrated) — NOT standard PCIe
Bracket height MUST match chassis — Full Height (2U) vs Low Profile (1U)
PRODUCT OVERVIEW

ThinkServer always meets the demand for performance enhancement and feature enablement by way of continuous improvement on products and options. Upgrading your systems with the new options will bring you great value with flexibility, scalability and field-proven reliability.Flexible I/O virtualisation for port partitioning and quality of service Innovative power management features including energy-efficient Ethernet and DMA Coalescing for increased efficiency and reduced power consumption Reliable and proven Ethernet technology. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
4XC0F28731
SPECIFICATIONS
Part Number4XC0F28731
ManufacturerLenovo
Capacity1000MB
BROWSE LENOVO MACHINES
ThinkSystem SR650 V1 ThinkSystem SR650 V2 ThinkSystem SR630 V1 ThinkSystem SR630 V2 System x3650 M5 System x3550 M5 ThinkServer RD550 System x IBM System x3650 M4 ThinkServer RD650 SD530 System x3500 M4 ThinkServer RD350
All Lenovo machines and parts
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM SFP+ SFP+ LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 2-PORT 10GbE | SFP+ | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN 4XC0F28731 MFR Lenovo Lenovo I350-T4 Internal Ethernet 1000 Mb
KEY FEATURES
•
1000MB Capacity
TYPICAL APPLICATIONS
  • Data center top-of-rack switching
  • High-speed server interconnects (10G/25G/40G/100G)
  • Storage network fabric (iSCSI, FCoE)
  • Campus and branch network infrastructure
  • Firewall and security appliance connectivity
  • WAN edge and SD-WAN deployments
SUBSTITUTES & CROSS-REFERENCES 2
03T8760CompatiblePARTNER
IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - FRU
compatible
03X4476CompatiblePARTNER
IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - FRU
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 2
03T8760SUBSTITUTE
IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - Option
LENOVO
03X4476SUBSTITUTE
IBM NIC 1GbE RJ-45 4-Port PCI-E-2.0x4 Intel I350-T4 Controller for ThinkServer - Option
LENOVO
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FREQUENTLY ASKED QUESTIONS
What is 4XC0F28731?
4XC0F28731 is a Lenovo I350-T4 Internal Ethernet 1000 Mbit/s manufactured by Lenovo.
What parts can replace 4XC0F28731?
There are 2 known substitutes for 4XC0F28731: 03T8760, 03X4476. Substitute compatibility should be verified for your specific system.
Is 4XC0F28731 still available?
4XC0F28731 is currently Unknown.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.